Would pion/interceptor be useful? Anything I can change/add

[Sean-Der]

Hey @aler9

I just finished up the README/examples for https://github.com/pion/interceptor and wanted to see if I could convince you to get involved :)

I want to be re-usable RTP/RTCP infrastructure we can work together on. You can opt in/out of different interceptors and then we could benefit from each others work! I am also hopeful this will kickstart other RTP/RTCP based projects in go. The overlap I see is.

• Sender/Receiver Reports
• JitterBuffer

[aler9]

hello @Sean-Der, of course i'm willing to contribute to the project, especially since the RTCP part is missing from pion/webrtc and at the same time is essential in SFUs in order to tune the bitrate, my only problem is lack of time :)

Anyway, i already did a research work about webrtc and RTCP for a commercial project, and it involved

1. building a SFU with pion/webrtc that links a receiver and a transmitter, routes RTCP packets between them and intercepts RTCP packets sent from/to Chrome
2. inspecting RTCP packets generated by Chrome
3. limiting the bandwidth, watching NACKs
4. implementing RTCP feedback inside another SFU, replicating Chrome behavior

The biggest difference between the RTCP implementation of this project and the one fit for pion/webrtc is that mine doesn't parse RTCP/RTP packets for performance reasons - therefore at the moment they cannot share a common library, but it's not a big deal and i already have a version fit for the pion/webrtc.

What is missing is

1. make it compatible with interceptors
2. modularize it (separate RTCP feedback and NACKs)
3. add unit tests

Therefore i will publish as soon as i can.

[Sean-Der]

awesome! Another great one will be statistics.

I am going to write an interceptor that feeds getStats, but that would also be great for RTSP. Users will be able to see all that great stuff like packet loss/jitter etc... and I want to have visualization tools as well :)

Thanks for the optimism. It is really great to have other projects doing RTC in Go, feels like momentum is growing

[aler9]

moved here #22

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